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added usage on how to actually run video_dmtx.cpp

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Gary Bradski 2012-03-02 19:39:06 +00:00
parent f67a0902aa
commit bd2014deba
1 changed files with 6 additions and 0 deletions
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6
samples/cpp/video_dmtx.cpp
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@ -5,6 +5,7 @@
* Author: Ethan Rublee * Author: Ethan Rublee
* *
* A starter sample for using opencv, get a video stream and display the images * A starter sample for using opencv, get a video stream and display the images
* Use http://datamatrix.kaywa.com/ to generate datamatrix images using strings of length 3 or less.
* easy as CV_PI right? * easy as CV_PI right?
*/ */
#include "opencv2/highgui/highgui.hpp" #include "opencv2/highgui/highgui.hpp"
@ -29,6 +30,11 @@ void help(char** av)
<< "\tThe program captures frames from a camera connected to your computer.\n" << "\tThe program captures frames from a camera connected to your computer.\n"
<< "\tTo find the video device number, try ls /dev/video* \n" << "\tTo find the video device number, try ls /dev/video* \n"
<< "\tYou may also pass a video file, like my_vide.avi instead of a device number" << "\tYou may also pass a video file, like my_vide.avi instead of a device number"
<< "\n"
<< "DATA:\n"
<< "Generate a datamatrix from from http://datamatrix.kaywa.com/ \n"
<< " NOTE: This only handles strings of len 3 or less\n"
<< " Resize the screen to be large enough for your camera to see, and it should find an read it.\n\n"
<< endl; << endl;
} }